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    <h1>Example: Basic Top Nav</h1>

    

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            <div class="content"><div class="intro">
    <p>
    This example demonstrates how to create a traditional, two-column page layout (<a href="../cssgrids/index.html">using Grids</a>) with top navigation featuring drop-down menus.
    </p>
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<h2>Setting Up the HTML</h2>

<p>
Begin by including the <a href="../cssgrids/index.html#dependencies">CSS Grids dependencies</a> and grid
markup (this example uses a 2 column version of the
<a href="../cssgrids/cssgrids-fluid.html">Fluid Page Template</a> with a 160px left column).
Add the markup for the menu to the left column of the grid, and the class <code>yui3-skin-sam</code>
to the <code>&#60;body&#62;</code>.
</p>

<p>
The root menu of menus built using the MenuNav Node Plugin can have a verical or horizontal
orientation.  The default orientation for menus is vertical, but can be easily switched to
horizontal by applying a class of <code>yui3-menu-horizontal</code> to the node representing the
root menu's bounding box, as illustrated below:
</p>

<pre class="code prettyprint">&lt;div id=&quot;productsandservices&quot; class=&quot;yui3-menu yui3-menu-horizontal&quot;&gt;&lt;!-- Bounding box --&gt;
    &lt;div class=&quot;yui3-menu-content&quot;&gt;&lt;!-- Content box --&gt;
        &lt;ul&gt;
            &lt;!-- Menu items --&gt;
        &lt;&#x2F;ul&gt;
    &lt;&#x2F;div&gt;
&lt;&#x2F;div&gt;</pre>



<h2>Initializing the Menu</h2>
<p>
With the menu markup in place, retrieve the Node instance representing the root
menu (<code>&#60;div id="productsandservices"&#62;</code>) and call the
<a href="http://yuilibrary.com/yui/docs/api/classes/Node.html#method_plug"><code>plug</code></a>
passing in a reference to the MenuNav Node Plugin.
</p>

<pre class="code prettyprint">&#x2F;&#x2F;  Call the &quot;use&quot; method, passing in &quot;node-menunav&quot;.  This will load the
&#x2F;&#x2F;  script and CSS for the MenuNav Node Plugin and all of the required
&#x2F;&#x2F;  dependencies.

YUI().use(&#x27;node-menunav&#x27;, function(Y) {

    &#x2F;&#x2F;  Retrieve the Node instance representing the root menu
    &#x2F;&#x2F;  (&lt;div id=&quot;productsandservices&quot;&gt;) and call the &quot;plug&quot; method
    &#x2F;&#x2F;  passing in a reference to the MenuNav Node Plugin.

    var menu = Y.one(&quot;#productsandservices&quot;);

    menu.plug(Y.Plugin.NodeMenuNav);

});</pre>


<p>
<em>Note:</em> In keeping with the
<a href="http://developer.yahoo.com/performance/">Exceptional Performance</a>
team's recommendation, the script block used to instantiate the menu will be
<a href="http://developer.yahoo.com/performance/rules.html#js_bottom">placed at the bottom of the page</a>.
This not only improves performance, it helps ensure that the DOM subtree of the
element representing the root menu
(<code>&#60;div id="productsandservices"&#62;</code>) is ready to be scripted.
</p>
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                <div class="sidebox">
                    <div class="hd">
                        <h2 class="no-toc">Examples</h2>
                    </div>

                    <div class="bd">
                        <ul class="examples">
                            
                                
                                    <li data-description="Creating left navigation using the MenuNav Node Plugin.">
                                        <a href="menunav-leftnav.html">Basic Left Nav</a>
                                    </li>
                                
                            
                                
                                    <li data-description="Creating top navigation using the MenuNav Node Plugin">
                                        <a href="node-menunav-2.html">Basic Top Nav</a>
                                    </li>
                                
                            
                                
                                    <li data-description="Creating menu button navigation using the MenuNav Node Plugin">
                                        <a href="node-menunav-3.html">Menu Button Top Nav</a>
                                    </li>
                                
                            
                                
                                    <li data-description="Creating split button navigation using the MenuNav Node Plugin">
                                        <a href="node-menunav-4.html">Split Button Top Nav</a>
                                    </li>
                                
                            
                                
                                    <li data-description="Adding shadows to submenus of a left nav using the MenuNav Node Plugin">
                                        <a href="node-menunav-5.html">Left Nav with Submenus with Shadows</a>
                                    </li>
                                
                            
                                
                                    <li data-description="Adding rounded corners to submenus of a left nav using the MenuNav Node Plugin">
                                        <a href="node-menunav-6.html">Left Nav With Submenus With Rounded Corners</a>
                                    </li>
                                
                            
                                
                                    <li data-description="Skining a menu built using the MenuNav Node Plugin to look like the menus on Flickr">
                                        <a href="node-menunav-7.html">Skinning Menus Created Using the MenuNav Node Plugin</a>
                                    </li>
                                
                            
                        </ul>
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